What's going on, guys? I got another critique episode for you.
Today I'm gonna be doing leg bone anatomy.
And you guys went pretty crazy with these, we got about 50 submissions.
I'm not gonna able to go through all of them, especially because a lot of you guys...
you know, there are similar things that people do wrong or advice that I have for you guys. So...
If you're watching the free video, the premium video has like 28 people who I'm going to
critique, so much more in depth information.
The assignment for the leg bone anatomy was a two-parter.
I gave you three model photos, and you had to trace the bones on top of the photo with
simple forms, not the actual bone forms, but simplified forms.
Things that you can remember when you're inventing or when you're doing a figure drawing because
it's a lot harder to remember the organic forms of the bones, right, it's a lot easier
to remember simple forms.
And the other one was I gave you Skelly renderings of bones, and you had to just draw the same
bones simplified.
So the first one is a lot harder because you can't see the bones, it's real-life models,
people's skin and muscles covering the bones, and you have to imagine what the bones look
like underneath, that's harder.
But it's very valuable because that's what you'll actually be doing in real life,
you'll have a model in front of you, you have to know where the bones are.
I mean, you don't have to but it's helpful, that's why we're studying the bones, it's because
we want that information to inform us, and to improve our drawings.
So it's hard but that's a very useful exercise.
So the first critique is for a Hyun Bin Lim, actually really good, I'm starting with a
really good one here.
There's not too many issues.
I do see some things and I'll talk about them, but most of your anatomy is very accurate,
you've got them in the right spot, perspective is pretty good generally everywhere.
Down here you made a cone for the tibia, I don't mind that too much even though, personally,
I prefer boxes especially in the joints, for like the shaft of the bone, the femur, and
the tibia you can use a cylinder, that's fine.
But for the joint areas, those areas are really good to show structure, and cylinders aren't
the best at showing structure, boxes are much better at that because you can see the different
planes.
So you can see if something is facing a little bit away from you or towards you.
With a cylinder you can't, you rotate a cylinder and it's the same, it doesn't show you which
way it's facing, only the tilt of the cylinder shows you its direction.
So boxes are much more useful for that, like I said, especially in the joints, like the
ankle is a joint, the knee is a joint.
So like right here, see how you kinda made this front plane of the top of the tibia,
you rounded that out.
I would have made that into a box, the whole thing, because it would help me with the perspective.
And this knee that you drew here is actually one that I'm gonna focus on a little bit and
show you how to do it correctly because this whole thing is a little broken.
The tibia is pointing a little bit towards us, not as much as I drew here but more like this.
And then the femur is pointing a lot more forward towards the side, they're kind of
twisted, and you're not gonna get that much twisting between the femur and the tibia.
There's a little bit but not that much, that's broken, that's a broken knee.
And I feel like that's just because you weren't thinking of the angles of the boxes and that
will help you.
Before I go on to that little demo that I'm gonna do, I wanna mention in here this little
cylinder, this little the circle that you put in here for the condyle shape, it's a
little bit too small.
Overall, this whole form, the head of the femur should be larger, just maybe a little bit larger.
And then the ball would be like that much bigger, that's kind of an S-curve through there.
And the other thing with this one is that you're kinda pointing the patellas up a little
bit, and they wouldn't do that.
There's a ligament connecting the patella to the tibia in here which keeps it in place,
it's fixed to the tibia.
Now this is a common misconception about the placement of the patella, is that they kinda
move up with the femur, but they really don't.
It can kinda go in and out, but it's not gonna tilt that much.
So if I zoom in a little bit, I would keep this patella right there pointing straight,
fixed to this bone here.
Okay, so I'm gonna zoom into this drawing now and show you why I like boxes so much.
It's gonna help you keep all your perspective in place.
And the thing about boxes is it's the first thing you probably learn when you're learning
perspective, right.
It's like perspective 101, and it's one of the easiest things to learn about perspective.
And so once you know how to draw a box, it becomes very powerful, you can check so much
of your stuff with just boxes, you can keep a lot of your drawing in perspective, keep
things aligned.
And I'm gonna show you a few different applications of it here.
So one thing that I like to do when I'm drawing joints is start with an area that can be simplified
to a box, right.
With this one, the thing I think you guys are struggling with the most was the top platform
of the tibia.
So I'm starting with the top plane of that box.
We're looking down at it quite a bit.
And then it's got some depth.
Notice how I'm grouping my lines, so these vertical lines are all parallel.
And then you've got these three lines, they're parallel, and then you got these three lines,
they're parallel.
So you've got three groups of three lines going to a vanishing point.
This box that I have established, will now help me keep the rest of this knee in perspective
because when I put the femur on top of this platform, it should be in the same perspective,
yours is not.
Because look at...you see this back edge of the tibia, that's what you've identified here
with that edge.
But then the front edge of the femur, it should be parallel, right?
I mean, it's kinda just sitting right on top of it, should be parallel to this front edge,
but it's not.
You're tracking them into very different vanishing points, which makes them look like they're
twisted and broken.
If I had established a box somewhere in there, I would naturally just have a guide for myself
for everything I put around it.
So let's say I wanna put a cylinder on top of that box which is kind of like the condyles.
I have the axis of that cylinder, I know the ellipse is gonna be perpendicular to that.
It looks about right, and then the front edge of that cylinder goes to the same vanishing
points, can be parallel to that box, same thing on the top, and then I can cap it off
on the other side.
So there's my cylinder for the condyles.
And then I know that the form of the condyle is a little bit...it's got like another little
arc coming off of it and that's a more, you know, anatomical thing here that we learned
in the leg bones lesson.
So I'm gonna bring that out, and then that is the rest of the femur, that connects to
the shaft of the femur.
And that just keeps going all the way to the hip.
Also, notice how I'm drawing through the forms, it's like there's X-ray vision here, everything
is transparent and I can see through it.
You're not doing that, and so because you're drawing only the edges that you're seeing,
you're not connecting all the edges.
If you draw through the form and you draw the entire form, it's a lot easier to keep
everything connected, everything where it needs to be.
For example, when I drew the end of that cylinder on the other side, I made sure it ends right
where the box of the top of the tibia ends.
But if you didn't even define that back edge, you wouldn't know where to put that end cap.
This is all digital, so if you've got all these construction lines and then you're doing,
you know, a longer illustration, you can put another layer on top, clean it up, put a good
line quality on top of it and you're fine.
But when you're doing these anatomy studies, don't worry about keeping everything so perfect...or
not perfect but clean.
You can have all your construction lines show through, and it's actually more useful for
the instructor to see how you're constructing that stuff in the back.
So there's that, and then the patella that I put on top, you didn't put it on there.
But there's a patella that, like I just mentioned earlier, rests...or is fixed to the tibia.
And so if the point sits right in the middle in here, you got a little triangle, and then
there's the front plane.
And notice the front plane I'm going in this direction, that's because I've already established
these angles, those are the top planes.
If I wasn't specific about that, if I didn't have a box, it'd be a lot harder for me to
put that patella in the right spot.
And then the top edge, and then you got your depth.
And I also have the depth lines figured out, so I make sure that they're parallel.
And there's kind of a very simplified form of the patella.
If I wanted to clean that up because it's getting a little messy, I could put a layer on top.
Usually, if you look at the drawings that I was doing for the assignment examples, the
lines in the back, the ones you kind of see through X-ray vision, I usually do those a lot lighter.
So they don't get in the way, but I can still see them in order to help me construct everything.
I just went full dark on every line here just to kinda show you guys every line.
But when I'm drawing these, I am keeping them faded back, you know, they don't have to pop out.
But let's clean this up real quick.
So you see how just fading those lines back a little bit, those red lines and then having
the visible planes a little bit darker.
Now it's a little bit more clear of what's happening, but I still have my construction
lines underneath that I wanna show when I'm submitting my assignment for people to critique,
to look at.
It's a lot easier for people to critique your stuff if they could see your entire thought process.
But honestly, I don't think you constructed them in the first place, because if you did,
you would have these guides and all your angles would be in check.
You'd be able to see everything, keep everything parallel.
So that's really the power of boxes, not everything I drew here is a box, but the box helped me
draw everything else because there's lines that have to converge to the same vanishing
point when things are parallel.
Well, thank you, guys, for submitting your assignments.
There was a lot, I'm so glad there's so many of you guys participating, and finding use
in these lessons.
If you're watching the free version, there's a lot more in premium.
Go check it out.
I'm sure you've heard that ad several times now.
But there really is a lot more stuff.
For you premium people, thank you so much!
Thank you for the support.
Next up is butt so I'll see you in the butt!
See you guys.